I looked at McGriff a few yrs ago and agreed that he was just below the cut. There are too many sluggers from that era that were just as good or better. And many of them don't have steroid links.
McGriff falls behind Thomas, thome and McGwire (I don't care about the steroids for McGwire but that's another issue) of 1Bman not in the hall and right in with Bagwell, Edgar Martinez and Carlos Delgado. I would put him before Delgado in this tier but I don't think Delgado has a chance to make it. Palmeiro falls into this tier but I'm okay if you want to keep out marginal HOF'ers. And there are still guys like Helton, Grace, Mattingly, Will Clark, Galaragga, and probably another 6-10 similar marginal candidates.